Thanks for the fast reply. I need something under $90. You sure 550W is enough to power this system up? I did some calculating using the extreme power supply calculator and it said I need 630W. But I heard that it over exaggerates the watts.

Thanks for the fast reply. I need something under $90. You sure 550W is enough to power this system up? I did some calculating using the extreme power supply calculator and it said I need 630W. But I heard that it over exaggerates the watts.

630? You must have pumped up the volts on the e6750 way to high when you used the overclock option. You'll do that speed with a minor bump in voltage, especially since you're not using the stock cooler (let me put it into perspective, most q6600 g0s can do 3ghz on stock volts on the stock cooler). I guess you're system...maybe 400 watts tops? If you push the gfx with more volts and push the cpu harder, maybe top out at 500, but really doubt that. That corsair one will do good for you.

Edit: Oh and those are probably high (as in its actually lower) guesses btw.

Some things to keep in mind;
Electronics are not "IDEAL". IF you get a PSU with the exact wattage you "need" then you will probably end up having to replace more than just the PSU.
PSU's are the heart of your system, if your heart is always beating as fast as possable (to keep up with the demand) it won't last very long. The harder the PSU works the more heat it generates. A PSU that supplies more power than you need works less hard and last longer.
When Buying a NEW PSU, get the BEST, QUALITY PSU you can afford with MORE power than you "need". This allows room for future upgrades, and will give you better overclocks, smoother operation, and the PSU will last longer because it's not working so hard to supply the draw of your system.

Some things to keep in mind;
Electronics are not "IDEAL". IF you get a PSU with the exact wattage you "need" then you will probably end up having to replace more than just the PSU.
PSU's are the heart of your system, if your heart is always beating as fast as possable (to keep up with the demand) it won't last very long. The harder the PSU works the more heat it generates. A PSU that supplies more power than you need works less hard and last longer.
When Buying a NEW PSU, get the BEST, QUALITY PSU you can afford with MORE power than you "need". This allows room for future upgrades, and will give you better overclocks, smoother operation, and the PSU will last longer because it's not working so hard to supply the draw of your system.

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your logic is sound in one way but flawed in another.. it tends to push folks to all thinking they need 1000 watts when 550 is plenty..

Corsair HX 520W right now with the mail in rebate its a $100 it used to be $140 its definately one of teh best power supplies in its class so if you want something that will not crap out on you i highly recomend this one for the price- also as trog said overkill isnt nesscery a quality 550w will last you a lot longer than a cheap 1000w anyday

your logic is sound in one way but flawed in another.. it tends to push folks to all thinking they need 1000 watts when 550 is plenty..

overkill works but aint that efficient..

trog

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Yes, I agree that 95% of computers don't need a 1000 watt PSU, however;
Remember, a power supply that is rated at 1000 watts will not use or produce any more wattage than the computer draws. Therefore, the only "loss" is the money spent on the PSU, not the cost of electricity. If you are running a 1000 watt PSU on a rig that needs 400watts that PSU will run for a long time with few stability issues.

Yes, I agree that 95% of computers don't need a 1000 watt PSU, however;
Remember, a power supply that is rated at 1000 watts will not use or produce any more wattage than the computer draws. Therefore, the only "loss" is the money spent on the PSU, not the cost of electricity. If you are running a 1000 watt PSU on a rig that needs 400watts that PSU will run for a long time with few stability issues.

Some things to keep in mind;
Electronics are not "IDEAL". IF you get a PSU with the exact wattage you "need" then you will probably end up having to replace more than just the PSU.
PSU's are the heart of your system, if your heart is always beating as fast as possable (to keep up with the demand) it won't last very long. The harder the PSU works the more heat it generates. A PSU that supplies more power than you need works less hard and last longer.
When Buying a NEW PSU, get the BEST, QUALITY PSU you can afford with MORE power than you "need". This allows room for future upgrades, and will give you better overclocks, smoother operation, and the PSU will last longer because it's not working so hard to supply the draw of your system.

Click to expand...

Im running a Silverstone 800 Watt single 12 volt rail and it is more than i should need unless i wat to up to a newer set of gfx cards.

But i agree don't go too high, For example, when i did the build out for my rig i got 760.